How does a Do loop work? What is the difference between a Do While loop and a Do Until loop? A top-controlled loop and a bottom-controlled loop?

Question

What will be an ideal response?

Answer 1

In a Do loop, the body of the loop is executed while or until a condition is true or false. The Do loop uses a condition similar to an If…Then decision structure to determine whether it should continue looping. In this way, you can use a Do loop to execute a body of statements an indefinite number of times.?Visual Basic 2017 provides two types of Do loops: the Do While loop and the Do Until loop. Both Do loops execute statements repeatedly until a specified condition becomes true or false. Each loop examines a condition to determine whether the condition is true. The Do While loop executes as long as the condition is true.?The Do Until loop executes until the condition becomes true.?Do loops are either top-controlled or bottom-controlled, depending on whether the condition is tested before the loop begins or after the body of the loop has executed one time. A top-controlled loop is tested before the loop is entered; the body of a top-controlled loop might not be executed at all because the condition being tested might be true before any processing in the loop occurs.?Bottom-controlled loops test the condition at the bottom of the loop, so the body of a bottom-controlled loop is executed at least once.